Question about Samsung SMH7178STD Microwave Oven

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When Cooking the Microwave "bogs down", everything else works

I have a Samsung OTR SMH7178STD Microwave. I just moved and the microwave is acting oddly. When cooking it bogs way down, the lights dim and the panel LCD display dims. The food is still heating, but not nearly like it was. It almost seems as though there isn't enough amperage. Any suggestions?

-Shawn

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9098 Answers

SOURCE: SMH7178STD Not working properly

E4 means your thermistor (temperature sensor) is shorted or caked with grease, making it look shorted.

Normally you can get Samsung parts here: http://www.samsungparts.com/search/search.asp

But that part does not show up on a search so you'll probably have to call them:

J & J International, Inc.
311 Route 46 W, Suite E
Fairfield, NJ 07004
Tel 800.627.4368
Fax 973.276.9078

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Feb 09, 2008

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MicrowaveSvc
  • 9098 Answers

SOURCE: Danby DMW162BL-OTR not cooking after loud popping sound

I would say the high voltage diode blew.

I would check their Web site for links about parts, spares, or service.

http://www.danby.com/

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jul 04, 2008

buddymcl777
  • 67 Answers

SOURCE: Samsung microwave oven turntable doesn't turn

Yes it just will not cook or defrost very evenly. It is not dangerous however.

Probably the motor or gears that make the turntable go are worn or burnt out.

Posted on May 01, 2009

  • 1214 Answers

SOURCE: Samsung microwave doesn't heat food.

Microwave ovens that do not heat, and failed as you have described, have 1 or more of the following failed components, in order of cost -

1) Fuse
2) Diode
3) Capacitor
4) Transformer
5) Magnetron

4 and 5 are interchangeable when it comes to cost.

Try replacing 1 and 2, then 3, then it's decision time of whether to buy parts or replace the microwave.

Posted on Dec 11, 2009

rulds2008
  • 3866 Answers

SOURCE: Cooking bag of vegetables in

Sounds like some metel was interduced, now you cannot just put any bad of vegies the very paint might have some for of metals in it on the bag, Sounds like you blew the magntron in this bad boy and its going to cost a buch of money to fix it. Now that is caused by metal intruducted in the unit. A magatron might cost $100 bucks or more. Do not shoot the messenger i was not there when the vegies blew the unit nor do i know if it was save to put the whole bag in there. Let me know i am here to help, please do click accept button

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

Posted on Aug 24, 2010

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heatman101
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With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.

If it's fully covered under warranty. I'd suggest contacting the manufacturer to get it fixed free.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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